An RV parking space needs to be a few feet longer and at least a foot or two wider than your rig. At AA Personal Storage in Parowan, Utah, a 10x30 outdoor space ($30 a month) fits most boats, utility trailers, and RVs up to about 28 feet, and a 12x40 space ($40 a month) fits longer travel trailers, fifth wheels, and motorhomes (rates as listed in November 2026).
Picking the right RV parking space size comes down to two numbers: the total length of your rig, hitch to bumper, and its width with everything folded in. This guide explains how to measure, what fits in each of our two outdoor space sizes, and how boats, trailers, snowmobiles, and ATVs compare. If you also need an enclosed unit for camping gear, see our full storage unit size guide to compare every size we rent.
We rent two outdoor parking space sizes in Parowan: 10 feet wide by 30 feet long for $30 a month, and 12 feet wide by 40 feet long for $40 a month. Both are uncovered, month to month, and open to tenants 24 hours a day, 7 days a week.
| Feature | 10x30 space | 12x40 space |
|---|---|---|
| Width | 10 ft | 12 ft |
| Length | 30 ft | 40 ft |
| Area | 300 sq ft | 480 sq ft |
| Monthly rate (Nov 2026) | $30 | $40 |
| Availability (Nov 2, 2026) | "Only 2 left!" | Waiting list |
| Covered? | No, uncovered | No, uncovered |
| Best for | Boats, utility and car trailers, smaller RVs and travel trailers | Longer travel trailers, fifth wheels, and motorhomes |
Availability changes often, so check the Rent Storage page for live openings, or call (435) 447-4777 to ask about the 12x40 waiting list.
Measure the total length from the front of the hitch or tongue to the very back of the rig, including anything bolted on. Then measure the widest point with slide-outs closed and mirrors folded. Those two numbers, not the model name, tell you which space fits.
Many people go by the number in the brochure, like "a 30-foot trailer." That number is a helpful starting point, but brands don't all measure the same way. Some list the box length only, and some include the hitch. The safest approach is a tape measure:
Write the numbers down and leave yourself room to work. A foot or two of extra length makes backing in easier and keeps the hitch and rear accessories off the space lines.
A "30 ft RV" is often about 30 to 33 feet long overall once you add the hitch, bumper, and anything mounted on the back, so it is usually too long for a 30-foot space. Plan on the 12x40 for any rig sold as 30 feet or longer, and measure first if you are close.
Here is a simple guide based on overall measured length. These are general guidelines, not rules from a manufacturer.
| Measured overall length | Space to choose at AAPS | Why |
|---|---|---|
| Up to about 28 ft | 10x30 | Leaves a little room front and back |
| About 28 to 30 ft | 12x40 recommended | A 10x30 would be a bumper-to-line fit |
| About 30 to 38 ft | 12x40 | Room to back in and keep the rig inside the lines |
| Over about 38 ft | Call us first | (435) 447-4777, so we can talk through options |
Width matters too. A standard 8.5-foot-wide rig in a 10-foot space leaves about 1.5 feet total, or about 9 inches on each side. That is fine for parking, but it is tight for opening a side door or working on the rig. The 12-foot space leaves about 3.5 feet of total clearance, which is much easier with a big fifth wheel or motorhome.
A 10x30 fits most boats on trailers, utility and cargo trailers, car haulers, pop-up campers, teardrop and small travel trailers, truck campers on a trailer, and smaller Class B or Class C motorhomes. It is $30 a month at AA Personal Storage in Parowan, Utah.
Good fits for a 10x30 include:
If you are parking a boat, remember that the boat's listed length is the hull, not the package. The motor on the back and the trailer tongue up front add several feet, so measure the whole thing on the trailer. Our guide on how to store a boat for winter covers prep before you park it.
A 12x40 fits longer travel trailers, most fifth wheels, Class A and Class C motorhomes, and long toy haulers. It is $40 a month at AA Personal Storage in Parowan, Utah, and it was on a waiting list as of November 2, 2026.
Typical 12x40 rigs include:
The extra 2 feet of width also gives you room to walk around the rig, open storage bays, and clear snow off the roof with a brush or roof rake. If the 12x40 is full when you call, ask to be added to the waiting list and consider a 10x30 for a shorter trailer in the meantime.
Most non-RV items fit in a 10x30 space, and you can keep a snowmobile or ATV right in the space or on its trailer. Snowmobiles and ATVs are welcome in outdoor parking at AA Personal Storage, but no vehicles are allowed inside enclosed units.
| What you are parking | Usual space at AAPS | Notes |
|---|---|---|
| Fishing or ski boat on a trailer | 10x30 | Measure hull, motor, and tongue together |
| Large pontoon or wake boat | 10x30 or 12x40 | Depends on overall trailer length |
| Utility or cargo trailer | 10x30 | Most are well under 30 ft |
| Snowmobile trailer (1 to 4 sleds) | 10x30 | Sleds can stay loaded on the trailer |
| ATVs or side-by-sides | 10x30 | On a trailer or parked in the space |
| Pop-up or small travel trailer | 10x30 | Up to about 28 ft overall |
| Long travel trailer or fifth wheel | 12x40 | 30 ft and up overall |
| Class A motorhome | 12x40 | Measure bumper to bumper, including any rack |
Note that a tow vehicle needs its own space. If you want to leave both a truck and a trailer, plan on two spaces, or take the truck home.
All of our RV, boat, and trailer spaces are uncovered, and Parowan sits at about 6,155 feet, so plan for real winters. Long-term averages from the Western Regional Climate Center's Parowan station show average lows near 24°F in November and around 16°F to 17°F in December and January, with roughly 10 to 11 inches of snow a month from December through March.
A few things help any rig handle a winter outdoors:
AA Personal Storage is right off I-15, about 20 miles north of Cedar City and 12.7 miles from Brian Head on UT-143, and our 10x30 spaces start at $30 a month. You can get to your rig 24 hours a day, so early departures and late returns are easy.
Other reasons owners pick us:
Comparing prices? Our Parowan vs. Cedar City storage cost guide looks at outdoor parking rates in both towns, and storage for Cedar City residents covers the drive. For a quick overview of everything we offer for vehicles, see our RV, boat and trailer storage page.
Many RV and boat owners pair an outdoor space with a small enclosed unit for camping gear, life jackets, fishing tackle, and bedding they don't want to leave in the rig all winter. A 5x10 unit is $40 a month and a 10x10 is $65 a month at AA Personal Storage, as listed in November 2026.
Keep fuel cans, propane tanks, and other flammable items out of enclosed units, since our FAQ lists them as prohibited. Optional tenant protection is available for stored goods.
There is no single standard, and sizes vary by facility. AA Personal Storage in Parowan, Utah rents two outdoor sizes: a 10x30 space for $30 a month and a 12x40 space for $40 a month, as listed in November 2026. Measure your rig's overall length and width before choosing a space.
Usually not. A trailer sold as 30 feet often measures 30 to 33 feet overall once you include the hitch and rear bumper. At AA Personal Storage in Parowan, Utah, rigs that long belong in a 12x40 space, which is $40 a month. Rigs up to about 28 feet overall fit a 10x30.
Most RVs are about 8.5 feet wide with slide-outs closed, so a 10-foot space leaves about 9 inches on each side and a 12-foot space leaves about 21 inches. At AA Personal Storage in Parowan, Utah, choose the 12x40 if you want room to open doors and storage bays.
Most boats on trailers fit a 10x30 space. Measure the boat, motor, and trailer tongue together, since the hull length alone leaves out several feet. At AA Personal Storage in Parowan, Utah, a 10x30 is $30 a month, and longer pontoon or wake boat packages may need a 12x40 for $40 a month.
Yes. Snowmobiles and ATVs are welcome in outdoor parking at AA Personal Storage in Parowan, Utah, either on a trailer or parked in the space. A 10x30 space is $30 a month. Vehicles are not allowed inside enclosed units, so all motorized toys go in outdoor parking.
No. All outdoor RV, boat, and trailer parking at AA Personal Storage in Parowan, Utah is uncovered. Many owners use a breathable, fitted cover and winterize before the first hard freeze. Tenants can reach their spaces 24 hours a day, 7 days a week, and the property has 24/7 video surveillance.
AA Personal Storage is at 450 N 600 W in Parowan, Utah, just off I-15 and convenient to Cedar City, Enoch, Paragonah, Summit, and Brian Head. Measure your rig, then rent a 10x30 or 12x40 parking space online, or call us at (435) 447-4777 to check availability or join the 12x40 waiting list. A $50 reservation fee holds a space for 25 days and is credited to your move-in charges. Questions? Email hello@aapersonalstorage.com, or see our location and directions before you tow over.
